New ruthenium complexes in the catalytic hydrogenation of alkynes. Study of structure and mechanism

Youval Shvo; Israel Goldberg; Dorotha Czerkie; Dvora Reshef; Zafra Stein

doi:10.1021/om960469w

New ruthenium complexes in the catalytic hydrogenation of alkynes. Study of structure and mechanism

Youval Shvo^*, Israel Goldberg, Dorotha Czerkie, Dvora Reshef, Zafra Stein

^*Corresponding author for this work

School of Chemistry

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

68 Scopus citations

Abstract

The reaction of [(η⁵-Ph₄C₄COHOCC₄Ph ₄-η⁵)(μ-H)[(CO)₄Ru₂] (1) with several alkynes was studied. Two new types of Ru complexes, [(η⁵-Ph₄C₄CO)(CO)₂RuC(Ph)=CPh] (6) and[(η⁵-Ph₄C₄COH)(CO)₂ RuC(CO₂Me)=CHCO₂Me] (7), were isolated and structurally characterized by single-crystal X-ray crystallography. These complexes were found to be implicated in the hydrogenation of alkynes with 1 as a catalyst precursor. While complex 7 was found to function as a catalyst in the hydrogenation cycle, complex 6 acts as a catalysis poison by virtue of its stability and irreversible formation. A catalytic cycle has been proposed.

Original language	English
Pages (from-to)	133-138
Number of pages	6
Journal	Organometallics
Volume	16
Issue number	1
DOIs	https://doi.org/10.1021/om960469w
State	Published - 7 Jan 1997

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abstract = "The reaction of [(η5-Ph4C4COHOCC4Ph 4-η5)(μ-H)[(CO)4Ru2] (1) with several alkynes was studied. Two new types of Ru complexes, [(η5-Ph4C4CO)(CO)2RuC(Ph)=CPh] (6) and[(η5-Ph4C4COH)(CO)2 RuC(CO2Me)=CHCO2Me] (7), were isolated and structurally characterized by single-crystal X-ray crystallography. These complexes were found to be implicated in the hydrogenation of alkynes with 1 as a catalyst precursor. While complex 7 was found to function as a catalyst in the hydrogenation cycle, complex 6 acts as a catalysis poison by virtue of its stability and irreversible formation. A catalytic cycle has been proposed.",

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T1 - New ruthenium complexes in the catalytic hydrogenation of alkynes. Study of structure and mechanism

AU - Shvo, Youval

AU - Goldberg, Israel

AU - Czerkie, Dorotha

AU - Reshef, Dvora

AU - Stein, Zafra

PY - 1997/1/7

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AB - The reaction of [(η5-Ph4C4COHOCC4Ph 4-η5)(μ-H)[(CO)4Ru2] (1) with several alkynes was studied. Two new types of Ru complexes, [(η5-Ph4C4CO)(CO)2RuC(Ph)=CPh] (6) and[(η5-Ph4C4COH)(CO)2 RuC(CO2Me)=CHCO2Me] (7), were isolated and structurally characterized by single-crystal X-ray crystallography. These complexes were found to be implicated in the hydrogenation of alkynes with 1 as a catalyst precursor. While complex 7 was found to function as a catalyst in the hydrogenation cycle, complex 6 acts as a catalysis poison by virtue of its stability and irreversible formation. A catalytic cycle has been proposed.

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New ruthenium complexes in the catalytic hydrogenation of alkynes. Study of structure and mechanism

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